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Andru [333]
3 years ago
14

Given cos B = 11/18 find angle B in degrees. Round your answer to the nearest hundredth.

Mathematics
2 answers:
Anastaziya [24]3 years ago
5 0
B = cos^{-1}(\frac{11}{18}) \approx 52.33^\circ
Elden [556K]3 years ago
3 0

Answer:

B\approx 52.33^{\circ}

Step-by-step explanation:

We have been given that \text{cos}(B)=\frac{11}{18}. We are asked to find the measure of angle B.

We will use inverse cosine or arccos to solve for the measure of angle B as:

B=\text{cos}^{-1}(\frac{11}{18})

B=52.33011303567^{\circ}

Upon rounding our answer to nearest hundredth, we will get:

B\approx 52.33^{\circ}

Therefore, the measure of angle B is 52.33 degrees.

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Answer:

a) $420 b) $399

Step-by-step explanation:

a) $600 = 100%

$60 = 10%

$60 times 3 gives 30% = $180

$600 - $180 = $420

b) $420 = 100%

$42 = 10%

$21 = 5%

this means, they profitted by $21.

so $420 - $21 = $399

therefore, $399 is the cost price

4 0
3 years ago
Sound travels about 750 miles per hour. If you stand in a canyon and sound a horn, you will hear an echo.
cricket20 [7]

Answer:

The sound takes time to go to a point and reflect back to your position.

It means the sound went twice a distance.

=> Suppose it takes about 0.5 seconds to hear the echo, the canyon wall would be [750 x (0.5/3600)]/2 = 0.052 miles

=> Suppose it takes about n seconds to hear the echo, the canyon wall would be [750 x (n/3600)]/2 miles

Hope this helps!

:)

8 0
3 years ago
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Step-by-step explanation:

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2 years ago
Find the LCM of 63 and 84.
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